An Enhanced Flexible Color Filter Via Imprint Lithography and Inkjet Deposition Methods

Author

Holland, Edward R. ; Jeans, Albert ; Mei, Ping ; Taussig, Carl P. ; Elder, Richard E. ; Bell, Cynthia ; Howard, Emmett ; Stowell, John ; Rourke, Shawn O.

Author_Institution

Hewlett-Packard Co., Palo Alto, CA, USA

Volume

7

Issue

6

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

311

Lastpage

317

Abstract

We identify new methods for the roll-to-roll production of flexible color filter arrays (CFA) for electronic displays. Through the use of imprint lithography to define “color wells” we have enabled inkjet deposition as a means to generate CFAs, despite the modest precision attainable with liquid drop placement. In this paper, we outline the imprint lithography process and color well design for template production. The advantage of printing the filter array within a predetermined template is demonstrated, and analysis of their structure and optical properties is presented. CFAs, produced by this technique, provide one means to realize color reflective displays. Application of filters produced by the new process to a 3.8^´´ color VGA (120 micron sub pixel pitch) E-ink based display platform is discussed.

Keywords

flexible displays; ink jet printing; lithography; optical filters; color reflective displays; electronic displays; enhanced flexible color filter; flexible color filter arrays; imprint lithography; inkjet deposition methods; roll-to-roll production; template production; Color; Image color analysis; Lithography; Optical filters; Resins; Substrates; Color filter; imprint; roll to roll (R2R); self-aligned imprint lithography (SAIL); template;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2010.2090860

Filename

5721796